Apr 17, 2013 12:35am PDT
campbell and a chinese exchange student whose family asked her name to remain private. they're the focus. as well as the investigation on who killed them. and for that, abc's brian ross joins us. brian, what do they know? >> good evening, terry. right now, this is an investigation with great urgency because whoever did it is still at large and it's not known whether more attacks are planned. today there was a great breakthrough. according to the fbi, they have recovered the partial mangled remains of one of the bombs that did not fully explode. it turns out it's made out of common kitchen items, a pressure cooker. this exact model that we bought for $140 tonight about a half mile from here. but at a bomb it was palled with wires, electronic circuit board, tiny ball bearings and nails. all designed to maim and kill and get maximum damage to its victims. this is what remains of the pressure cooker turned into a moment made bomb. seen in this fbi crime lab photo obtained by abc news. it was hidden in a black backpack. what's left of it seen in this photo. the simple bombs were responsible f
Apr 18, 2013 12:35am PDT
martin richard, 29-year-old krystelle campbell, and a third identified, a native of china. >> thanks to brian for that. a program note. in our east coast broadcast we used a video excerpt that was not related to the explosion of the fertilizer plant of west, texas. that was immediately addressed and corrected. we thank you for watching abc news. tune into "good morning america" for all the latest. good nig ♪ ♪ if loving you is wrong ♪ i don't wanna be right [ record scratch ] what?! it's not bad for you. it just tastes that way. [ female announcer ] honey nut cheerios cereal -- heart-healthy, whole grain oats. you can't go wrong loving it. bee happy. bee healthy. with clusts of flakes and o's. oh, ho ho... it's the honey sweetness. i...i mean, you...love.